kakoune/rc/extra/moon.kak
Maxime Coste ec16969609 Do not reparse %sh{...} strings
Automatic reparsing of %sh{...}, while convenient in many cases,
can be surprising as well, and can lead to security problems:

'echo %sh{ printf "foo\necho bar" }' runs 'echo foo', then 'echo bar'.
we make this danger explicit, and we fix the 'nop %sh{...}' pattern.

To reparse %sh{...} strings, they can be passed to evaluate-commands,
which has been fixed to work in every cases where %sh{...} reparsing
was used..
2018-07-05 07:54:28 +10:00

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# http://moonscript.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](moon) %{
set-option buffer filetype moon
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/ regions -default code moon \
double_string '"' (?<!\\)(\\\\)*" '' \
single_string "'" (?<!\\)(\\\\)*' '' \
comment '--' '$' '' \
add-highlighter shared/moon/double_string fill string
add-highlighter shared/moon/double_string regions regions interpolation \Q#{ \} \{
add-highlighter shared/moon/double_string/regions/interpolation fill meta
add-highlighter shared/moon/single_string fill string
add-highlighter shared/moon/comment fill comment
add-highlighter shared/moon/code regex ([.\\](?=[A-Za-z]))|(\b[A-Za-z]\w*:)|(\b[A-Za-z]\w*\K!+)|(\W\K[@:][A-Za-z]\w*) 0:variable
add-highlighter shared/moon/code regex \b(and|break|catch|class|continue|do|else(if)?|export|extends|false|finally|for|from|if|import|in|local|nil|not|or|return|super|switch|then|true|try|unless|using|when|while|with)\b 0:keyword
# Commands
# ‾‾‾‾‾‾‾‾
define-command moon-alternative-file -docstring 'Jump to the alternate file (implementation ↔ test)' %{ evaluate-commands %sh{
case $kak_buffile in
*spec/*_spec.moon)
altfile=$(eval printf %s\\n $(printf %s\\n $kak_buffile | sed s+spec/+'*'/+';'s/_spec//))
[ ! -f $altfile ] && echo "echo -markup '{Error}implementation file not found'" && exit
;;
*.moon)
path=$kak_buffile
dirs=$(while [ $path ]; do printf %s\\n $path; path=${path%/*}; done | tail -n +2)
for dir in $dirs; do
altdir=$dir/spec
if [ -d $altdir ]; then
altfile=$altdir/$(realpath $kak_buffile --relative-to $dir | sed s+[^/]'*'/++';'s/.moon$/_spec.moon/)
break
fi
done
[ ! -d $altdir ] && echo "echo -markup '{Error}spec/ not found'" && exit
;;
*)
echo "echo -markup '{Error}alternative file not found'" && exit
;;
esac
printf %s\\n "edit $altfile"
}}
define-command -hidden moon-filter-around-selections %{
evaluate-commands -draft -itersel %{
execute-keys <a-x>
# remove trailing white spaces
try %{ execute-keys -draft s \h + $ <ret> d }
}
}
define-command -hidden moon-indent-on-char %{
evaluate-commands -draft -itersel %{
# align _else_ statements to start
try %{ execute-keys -draft <a-x> <a-k> ^ \h * (else(if)?) $ <ret> <a-\;> <a-?> ^ \h * (if|unless|when) <ret> s \A | \z <ret> ) <a-&> }
# align _when_ to _switch_ then indent
try %{ execute-keys -draft <a-x> <a-k> ^ \h * (when) $ <ret> <a-\;> <a-?> ^ \h * (switch) <ret> s \A | \z <ret> ) <a-&> ) <space> <gt> }
# align _catch_ and _finally_ to _try_
try %{ execute-keys -draft <a-x> <a-k> ^ \h * (catch|finally) $ <ret> <a-\;> <a-?> ^ \h * (try) <ret> s \A | \z <ret> ) <a-&> }
}
}
define-command -hidden moon-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# copy -- comment prefix and following white spaces
try %{ execute-keys -draft k <a-x> s ^ \h * \K -- \h * <ret> y gh j P }
# preserve previous line indent
try %{ execute-keys -draft \; K <a-&> }
# filter previous line
try %{ execute-keys -draft k : moon-filter-around-selections <ret> }
# indent after start structure
try %{ execute-keys -draft k <a-x> <a-k> ^ \h * (class|else(if)?|for|if|switch|unless|when|while|with) \b | ([:=]|[-=]>) $ <ret> j <a-gt> }
# deindent after return statements
try %{ execute-keys -draft k <a-x> <a-k> ^ \h * (break|return) \b <ret> j <a-lt> }
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group moon-highlight global WinSetOption filetype=moon %{ add-highlighter window ref moon }
hook global WinSetOption filetype=moon %{
hook window ModeChange insert:.* -group moon-hooks moon-filter-around-selections
hook window InsertChar .* -group moon-indent moon-indent-on-char
hook window InsertChar \n -group moon-indent moon-indent-on-new-line
alias window alt moon-alternative-file
}
hook -group moon-highlight global WinSetOption filetype=(?!moon).* %{ remove-highlighter window/moon }
hook global WinSetOption filetype=(?!moon).* %{
remove-hooks window moon-indent
remove-hooks window moon-hooks
unalias window alt moon-alternative-file
}